# One Brain vs Top Charts!

The clearest difference is review sentiment: One Brain at 59% against Top Charts!'s 0%. One Brain also leads on rating (4.4 vs 1.4) and ratings volume (297 vs 5). Top Charts!'s advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15). On price, ads and device support there is nothing between them.

Both are free to download. One Brain sells 1 one-off in-app purchase. Top Charts! asks for nothing beyond the download.

One Brain holds the better App Store score, 4.4 against 1.4. That said, the two scores are not equally well evidenced: One Brain has 297 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 59% of One Brain's written reviews are positive against 0% of Top Charts!'s.

## The numbers

| Metric | One Brain | Top Charts! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (297 ratings)](https://appshunter.io/ios/app/one-brain/id1229367064/reviews)** | [1.4 (5 ratings)](https://appshunter.io/ios/app/top-charts/id1550964000/reviews) |
| Number of ratings | **297** | 5 |
| Positive reviews | **58.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 10 MB | 84 MB |
| Requires iOS | 15 | **10.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Erik Wegener](https://appshunter.io/developer/424482392) | [MIDPOLY OYUN YAZILIM TASARIM DANISMANLIK HIZMETLERI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1465253591) |

## What reviewers say

### One Brain

[App page](https://appshunter.io/ios/app/one-brain/id1229367064)

Test your cognitive abilities with a game inspired by the Stroop effect. Quickly identify matching colors, arrow directions, or true/false math equations under time pressure. Challenge your brain to process conflicting information and achieve high scores.

**Highlights:** Stroop effect inspired gameplay, Color matching challenges, Arrow direction tests, Math equation verification, Timed gameplay, Score tracking

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and effective brain training
- 🧠 Helps improve focus and concentration
- 🤯 Challenging and addictive gameplay

**What reviewers complain about**

- ⏱️ Timer is too short, needs more time
- 🙄 Excessive ads and interruptions
- 🤖 Inconsistent scoring and feedback

**Reported bugs**

- Incorrect registering of correct answers
- Crashes and freezes on certain devices
- Keyboard controls not working as expected

**Requested features**

- Adjustable difficulty levels
- More game modes and variations
- Option to disable ads or pay for ad-free version


### Top Charts!

[App page](https://appshunter.io/ios/app/top-charts/id1550964000)

Explore diverse questions across various categories, from celebrities to history, and visualize data with multiple chart types. Control graph elements and mechanics to find answers.

**Highlights:** Multiple question categories, Variety of chart types, Interactive graph controls, Data visualization mechanics, Trivia gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Brain free?

One Brain is free to download, with in-app purchases available.

### Is Top Charts! free?

Top Charts! is free to download, with no in-app purchases.

### Which has better reviews, One Brain or Top Charts!?

One Brain is rated higher. One Brain averages 4.4 out of 5 from 297 ratings, while Top Charts! averages 1.4 from 5 ratings.

### Do One Brain or Top Charts! have ads?

Both One Brain and Top Charts! show ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*